Gannon



l. JACKSON.

CANNON.

APPLICATION man 001.5. 19m.

Patented J une 10, i919.

' ssHEETs-SHEET l.

j. JACKSON.

CANNON.

APPLICATION FILED OCT. 5. 1918.

1 ,306,0 l 2. Patented June 10, 1919.

3 SHEETS-SHEET 2.

J. JACKSON.

CANNON.

- APPLICATION FILED ocT. 5. ma. 1 ,306,012, Patented June 10, 1919.

- s sHETs-sHEET 3.-

aman/Coz me wams zrzns nov, puoruzumu.. vusmmmmrA o. c.

' 'i Tov4 all t may concern.'

' JOHN JACKSON, OF PORTSMOUTH, OHIO.

CANNON.

.Be it known that I, JOHN JACKSON, a citizen of the United States, residing vat Portsmouth, in the county of Scioto and State ofOhio, have invented certain new and Vuseful Improvements in. Cannons, of

Y 'which vthe following is a specification.

- Thisi invention relates to ordnance of the `type generally designated as heavy ordnance andiaims to provide a gun which is electrically and pneumatically operated and which .is designed for field, coast guard and battleship' service.

l The main object of the-invention is the provision' of a cannon which may be operfated withease and certainty and which has la long aim, the projectile being redby successive explosions. The drawings illus- A @trate a preferred embodiment of the invention, however, it visy to be understood that in adapting the same lto. meet diEerent conditions, various changes in the form, proportion and `Vminor details of construction may l y .be resorted to .without departing from kthe nature of--the invention as claimed herein- Y In" the drawings 'Y Y y.. Figure l 1s lacentral longitudinal section Y d of acannonembodying the invention, the

muzzle portion. of the barrel being broken away andthe cylinder containing the breech block operating mechanism being in full. Fig.- 2 isga transverse section on the line n 2 2 of Fig'.11'loolring toward themuzzle vof Fig. 3. 1s facentrallongitudinal section 'of the cylinderk containing the breech block Y operating mechanism showing the parts on 'j aflarger scale,

locatedv within the piston forming a part of lthe breech block voperating mechanism,

Fig. 4 is a transverse section of the engine Fig. 5 is a cross section of the shaftA and sleeve coperating with the cylinder and ,piston of the breech block operating mechaj. msm.. n

vCorrespondingiand like parts are referred atoinv the following description and indii cated in the several views of the drawings byjlike reference characters.V

The barrel l of the/gun is mounted. upon jl lafcarriage which comprises a frame 2,'tra1ler aleifandfgrpund wheels 5. The barrel .1

Specication of Letters Patent.

Patented June V1o,v Y1919.

Appliationmea october 5, 4191s. serial Np. 257,093.

is enlarged midway of its ends as indicated at 6 and its forward portion is rifled in the usual manner as indicated at 7. `The breech ofthe barrel is formed'with the usual thread ,sections 8 which are adapted toy coact with corresponding thread sections 9 ofthe breech block 10; The. elevation of thebarrel is effected by means by a toothed segment 11 which is secured to the barrel in any substantial way.- A worm 12 is in meshing relation with the teeth of the segment l1 and is carried by a shaft which is rotated by means of a motor 13 preferably of the electricl type. Within the Vbarrel 1 is located an electric Ycontact 14 whichformsA one terminal of a firing'circuit. A wire15`from a battery ,16 is electrically connected with the contact 14. A wire1-7 from the other terminal of lthe battery 16is grounded onthe barrel. The battery- 16 is preferably of the storage type.- The projectile adapted to be ired from vthe gun is of theL type containing within itselfa firing charge and is initially'red j by a charge placed in the breech ofthe gun. After the initial charge has beenfired and ,during the Vmovement of the projectile through the barrel, the second charge is fired by means ofthe firing .circuit represented by the battery 16 and wires 15 and Av17. The second charge is'fired in the reinforced ,part 6 of thebarrel, the latter being reinforcedtov withstand the force of the eX- plosion. l

A loading chamber 18 is disposed in the rear of the barrel 1 and is. accessible by -means of a side opening 19 indicated most clearly in Fig. 2. Elevati'ng mechanism is disposed 'in the lower portion of the chamber 18 for lifting the projectile -into position 'for delivery into the breech of the gun. The

elevating mechanism comprises a plate 20 upon which the projectile is delivered 'and cylinders 21 with coperating pistons 22.-

Fluid motive medium is supplied tothe cylinders'21 below the pistons 22 by means Yof a pipe '23. `A valvey 24: in the length of thehpipe 23 controls the supply of motive medium 4to the cylindersY 21..Y The projectile is adapted to be supplied to the chamber 18 `in any manner and is delivered upon the ,plate 2O after which the valve 24is operated to supply the fluid medium to the cylinders 21`whereby the plate 20-ise1evated and hereinafter.

lifts the projectile to a position in line'pwith the barrell into Which it is pressed by theY breech blocll: 1'0 in' the AVforiifard movement thereof as Will be to contain air under pressure, said tank be-L n described Vmore vin idetail and is Vslidable on theshaft Y51 andconneoted Withfsaid -shaft'soas to rotatethereJVithy at K any-"point in "the tra-Vel rofl .thev piston?.17 The l Vcams 4:9 maybe of vany construction solong rotated. Y

The operation'xof thewgun is asfollows ingeharged bym'eensof an electrically v A VThe projectile to bey fired is suppliedfto 10 erated aircompressor 26 also mountedupon the trailer 3. The air for pertithe 'rele- 'r1-ebb .die banker) 'with tbe byiibdefs of die u 2o bbepisbdbeo bidi bbe-breddb bibbk '1o. The

'piston 30 is holloyiT Yand (fontaine piremddedny operated engi-ne which bofnpnses Y "a crank o'ase 32 'and a plrali'ty of Cylinders n Crank Shb'fb 234 'mente-d in bbb 'drank V .rating mechanism and the breech block acturV the loading chamber 18 and'is lifted by the Y* elevating Mechanism intojpos'ition'; t0`r ben pressed into the barrel After they profV jectile has been""'ele`\rated, the yalve'li() .si turned'soi as to 'admittle fluid motivemefccv i Alfter. die bmj-@bedding bbeifprbpbrly; ipbbi.-

25 'ddee l'32 projects at 'one' efic'bandhes a pinion' Y rotary movement to the 'breeoh b'lCk so as to QSSsecured, te its prjectng' end andnjmesh 'with gear 37b/heel Y6L Se'fd' to the maar 'ebd fof, the rod 3l. The purpose of theengine 'disp-dsed wthnlth'e piston 30 'iste-impart 'a rhann'er AWel' understood. Afpipel has its f 30- and op'en 'eXhas't pipe 3,743 "is 'nnetedrwithf each fof 'the cylinders B3 and is open i'noppos'ite 'ends of thepis'ton30 and isI closed ,at Vits .ends` by'means' ofVal'Yes 44 and'il. Tivo'o-f"tlejcyliiiders V33 are adapted to Aro'tatefthe era'nlr shaft 34' in 'one directidn 'and the remaining tw'o Cylinders are 'a'd'aptedrto rdtate 'the 'crank' shaft in v"lie opposite direction. Each off the eylidezrs '33 ihas an inlet l4&6 Which fisfa'dapted "to be closed by Iheansjo'f Valve'47 which latter is connected Iby inean's fof a 'rod 48 with a 'shaftifs threaded and proyided withanrfcp-` '710204.jk Y

- Vsection 8 of ftflvlefbreeeh(A ."Thel breechy block ried by the VVbreeeh block. 'i Alfter' thefinitial hdrgefis ffred and *the projectile has been fstdrtd du' its tamil rend; aifbjerA the sani@ reaqhese predetermined-peint 'in theV 'length fof the "barrel, a 'second feharge preferably l' part of the present invention it has not been amplified, it being obvious that any firing Y, mechanism may be employed.

V.make such changes in construction and ar rangement andcombination of parts, materials, dimensions, etc., as may prove expedient and fall within the scope of the appendedclaims.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is

1. Breech block operating mechanism for va gun of the type specified, the same comprising, a cylinder,a piston disposed to operate within the cylinder and having the breech block connectedy thereto, means for supplying a fluid motive medium to opposite ends `of the cylinder, and means within Y they piston forimparting rotary movement to the breech block to effect the locking or an unlocking thereof.

2. Breech b'lock operating mechanism of the character set forth comprising a cylinder adapted to have a fluid/motive medium supplied to opposite ends thereof, a piston within Ythe cylinder and having the breech '.i block connected thereto, an engine within Y ythe piston, and connecting means between ,Y the shaft of said engine, and the breech connecting means between the breech block l block for imparting rotary movement to the latter to eect a locking or an unlocking Y thereof.

3.1Breech block operating mechanism comprising a cylinder adapted to have a fluid motive medium supplied to opposite ends thereof, a hollow piston disposed within the cylinder and having valve controlled openings at opposite ends, a rod forming and piston, and an engine disposed within the piston and operable by the same Huid motive medium supplied to the cylinder for driving the piston, and having connection with Athe said rod for imparting a rotary movement thereto and to the breech block whereby the latter is lockedand released.

4:. Breech bloclr operating -mechanism comprising a cylinder adapted to have a fluid motive medium supplied to opposite rod forming connecting means between the breech block and piston, an engine within the piston and operable by the fluid motive medium admitted intovthe piston from the cylinder, and means connecting the shaft of the said engine withl the said rod for imparting rotary movement to the breech block.

5. Breech block Yoperating mechanism comprising a cylinder, means for supplying motive 'medium to opposite ends of the cylinder, a hollow piston within the cylinder, a rod forming connecting means between the breechI block and piston, an engine within the piston connected with the said rod for imparting a rotary movement thereto and to the breech block, and a Valve mechanism within the piston and operable from without the cylinder whereby the supply of the mo tive medium to the said engine may be properly controlled.

6. In breech block operating mechanism, a cylinder adapted to have a fluid motive medium supplied thereto, a hollow piston Within the cylinder and having a valve controlled opening, a rod forming connecting means between the breech block and piston, an engine within the piston and operable by the liuid medium supplied to the cylinder, a valve mechanism for controlling the supply of motive medium to the said engine, a shaft mounted in the cylinder, and a cam mechanism slidable on the said shaft and rotatable `therewith and having connection with the said valve mechanism to admit of operating` the same from a point without the cylinder.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN JACKSON.

Witnesses:

THOMAS C. BEATTY, HELEN HOFFMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

